Mariner's Quadrant 1720/25 - The mariner's quadrant was one of the earliest devices developed for measuring angles, either of a star above the horizon level or the top of a hill in surveying. The name suggests, it consists of a quarter of a circle, with the curved edge divided into 90 degrees. A cord and weight suspended from the point of the right-angle. The object was aligned through the sights on one edge, and the angle of elevation read off where the cord crossed the scale. This instrument is made of brass and its degree scale is subdivided for measurements to 30 minutes of arc.
What the Media is saying about us
The news reports and features below represent only a fraction of media articles which have been published about our expeditions and discoveries. This page is providing us with an opportunity to thank those journalists and writers which have quoted us correctly and by doing so have actually helped spreading the proper message about the preservation of our remaining heritage underwater.
Some of the articles about OD's filming adventures.
This highly educational audio CD has been published in February 2005 as a result of our team's expedition to Haiti in March 2004 and the subsequent discovery of several pirate ships belonging to one of the most famous buccaneers of all - Sir Henry Morgan. For more Information: www.headroom.infoor email@example.com
As part of its continuing commitment to underwater heritage and marine conservation, Oceans Discovery has formed Oceans Discovery Australia (ODA) to expand its pioneering training and technology operation.
OD's newest filming adventure will be the search for several Spanish Galleons from the late 16th Century, a timeframe in which „Sir Francis Drake" hunted Spanish ships in the "New World". The documentary will be filmed in high-definition on locations in the southern Caribbean. More about this highly technical underwater adventure on our next update.